Based on the results of our study of norfloxacin‐sucralfate coadministration, we suspected that sucralfate would interact also with ciprofloxacin if the drugs were administered concurrently. Therefore, we decided to give a 1‐g dose of sucralfate at 6 and 2 hours before a single 750‐mg dose of ciprofloxacin and evaluate its effect on the bioavailability of ciprofloxacin. Twelve healthy, male volunteers received ciprofloxacin alone and with sucralfate pretreatment in a randomized, balanced, crossover design. Blood and urine samples were collected over 24 hours after ciprofloxacin administration, and drug concentrations were assayed by high‐performance liquid chromatography. When sucralfate was given at 6 and 2 hours before ciprofloxacin, an average 30% decrease in ciprofloxacin's bioavailability was noted (p < 0.05). Four of the 12 subjects, however, had decreases in the agent's area under the curve of more than 50% with sucralfate pretreatment. The results of this study suggest that ciprofloxacin and sucralfate should not be administered concurrently until a dosing interval is found that will avoid this potential interaction. 1989 Pharmacotherapy Publications Inc.
|Original language||English (US)|
|Number of pages||4|
|Journal||Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy|
|State||Published - Jan 1 1989|
ASJC Scopus subject areas
- Pharmacology (medical)